Finding the Fourth Proportional to 74,613.05, 111,908.53 and 27,217.05
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Solution
The fourth proportional to 74,613.05, 111,908.53 and 27,217.05 is: 40,821.55
Step by Step Solution
- Step 1: Write the proportion equation
74,613.05 : 111,908.53 = 27,217.05 : x - Step 2: Convert to fraction form
74,613.05/111,908.53 = 27,217.05/x - Step 3: Cross multiply
74,613.05x = 111,908.53 × 27,217.05 - Step 4: Simplify right side
74,613.05x = 3,045,820,056.44 - Step 5: Solve for x
x = 3,045,820,056.44/74,613.05 - Step 6: Final answer
x = 40,821.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.